/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 07:25:45,036 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 07:25:45,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 07:25:45,057 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 07:25:45,057 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 07:25:45,059 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 07:25:45,061 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 07:25:45,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 07:25:45,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 07:25:45,077 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 07:25:45,079 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 07:25:45,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 07:25:45,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 07:25:45,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 07:25:45,086 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 07:25:45,087 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 07:25:45,088 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 07:25:45,089 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 07:25:45,090 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 07:25:45,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 07:25:45,100 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 07:25:45,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 07:25:45,104 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 07:25:45,105 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 07:25:45,107 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 07:25:45,108 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 07:25:45,108 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 07:25:45,109 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 07:25:45,110 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 07:25:45,111 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 07:25:45,112 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 07:25:45,112 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 07:25:45,113 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 07:25:45,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 07:25:45,115 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 07:25:45,115 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 07:25:45,116 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 07:25:45,116 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 07:25:45,116 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 07:25:45,117 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 07:25:45,118 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 07:25:45,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2020-04-18 07:25:45,156 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 07:25:45,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 07:25:45,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 07:25:45,158 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 07:25:45,158 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 07:25:45,158 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 07:25:45,159 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 07:25:45,159 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 07:25:45,159 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 07:25:45,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 07:25:45,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 07:25:45,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 07:25:45,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 07:25:45,162 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 07:25:45,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 07:25:45,162 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 07:25:45,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 07:25:45,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 07:25:45,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 07:25:45,163 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 07:25:45,163 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 07:25:45,163 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:25:45,164 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 07:25:45,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 07:25:45,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 07:25:45,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-18 07:25:45,165 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 07:25:45,166 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 07:25:45,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 07:25:45,166 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 07:25:45,475 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 07:25:45,495 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 07:25:45,499 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 07:25:45,500 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 07:25:45,500 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 07:25:45,501 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2020-04-18 07:25:45,574 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/041fdd7ae/a7b78887e87541b78be51ed92837304d/FLAG0de3f38b0 [2020-04-18 07:25:46,116 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 07:25:46,117 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-1.i [2020-04-18 07:25:46,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/041fdd7ae/a7b78887e87541b78be51ed92837304d/FLAG0de3f38b0 [2020-04-18 07:25:46,409 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/041fdd7ae/a7b78887e87541b78be51ed92837304d [2020-04-18 07:25:46,421 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 07:25:46,445 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 07:25:46,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 07:25:46,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 07:25:46,453 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 07:25:46,454 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:25:46" (1/1) ... [2020-04-18 07:25:46,457 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@340abb2f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:46, skipping insertion in model container [2020-04-18 07:25:46,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 07:25:46" (1/1) ... [2020-04-18 07:25:46,465 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 07:25:46,521 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 07:25:47,011 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:25:47,025 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 07:25:47,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 07:25:47,170 INFO L208 MainTranslator]: Completed translation [2020-04-18 07:25:47,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:47 WrapperNode [2020-04-18 07:25:47,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 07:25:47,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 07:25:47,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 07:25:47,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 07:25:47,180 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:47" (1/1) ... [2020-04-18 07:25:47,196 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:47" (1/1) ... [2020-04-18 07:25:47,225 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 07:25:47,225 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 07:25:47,225 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 07:25:47,225 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 07:25:47,235 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:47" (1/1) ... [2020-04-18 07:25:47,235 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:47" (1/1) ... [2020-04-18 07:25:47,238 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:47" (1/1) ... [2020-04-18 07:25:47,238 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:47" (1/1) ... [2020-04-18 07:25:47,243 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:47" (1/1) ... [2020-04-18 07:25:47,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:47" (1/1) ... [2020-04-18 07:25:47,250 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:47" (1/1) ... [2020-04-18 07:25:47,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 07:25:47,258 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 07:25:47,259 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 07:25:47,259 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 07:25:47,260 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 07:25:47,324 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2020-04-18 07:25:47,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2020-04-18 07:25:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-18 07:25:47,325 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-18 07:25:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 07:25:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 07:25:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 07:25:47,325 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 07:25:47,326 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 07:25:47,327 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 07:25:47,669 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 07:25:47,670 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-04-18 07:25:47,673 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:25:47 BoogieIcfgContainer [2020-04-18 07:25:47,674 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 07:25:47,675 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 07:25:47,675 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 07:25:47,678 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 07:25:47,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 07:25:46" (1/3) ... [2020-04-18 07:25:47,679 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31599f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:25:47, skipping insertion in model container [2020-04-18 07:25:47,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 07:25:47" (2/3) ... [2020-04-18 07:25:47,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31599f9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 07:25:47, skipping insertion in model container [2020-04-18 07:25:47,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 07:25:47" (3/3) ... [2020-04-18 07:25:47,682 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-1.i [2020-04-18 07:25:47,692 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 07:25:47,693 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 07:25:47,699 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 07:25:47,700 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 07:25:47,724 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,725 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,725 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,726 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,726 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,726 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,727 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,727 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,727 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,728 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,728 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,728 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,728 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,729 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,729 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,729 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,729 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,733 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,734 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,734 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,734 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,734 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,742 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,742 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,743 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,743 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,743 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,743 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:47,759 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-18 07:25:47,776 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:25:47,776 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:25:47,776 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:25:47,776 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:25:47,777 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:25:47,777 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:25:47,777 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:25:47,777 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:25:47,788 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 58 transitions, 126 flow [2020-04-18 07:25:47,861 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1004 states. [2020-04-18 07:25:47,864 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states. [2020-04-18 07:25:47,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-04-18 07:25:47,873 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:25:47,874 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:25:47,875 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 07:25:47,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:25:47,881 INFO L82 PathProgramCache]: Analyzing trace with hash -2138170809, now seen corresponding path program 1 times [2020-04-18 07:25:47,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:25:47,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278287537] [2020-04-18 07:25:47,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:25:48,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:25:48,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:25:48,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278287537] [2020-04-18 07:25:48,448 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:25:48,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 07:25:48,449 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209440716] [2020-04-18 07:25:48,454 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 07:25:48,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:25:48,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 07:25:48,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:25:48,472 INFO L87 Difference]: Start difference. First operand 1004 states. Second operand 9 states. [2020-04-18 07:25:48,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:25:48,799 INFO L93 Difference]: Finished difference Result 1010 states and 2472 transitions. [2020-04-18 07:25:48,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:25:48,801 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-04-18 07:25:48,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:25:48,832 INFO L225 Difference]: With dead ends: 1010 [2020-04-18 07:25:48,833 INFO L226 Difference]: Without dead ends: 681 [2020-04-18 07:25:48,837 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 07:25:48,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2020-04-18 07:25:48,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 649. [2020-04-18 07:25:48,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2020-04-18 07:25:48,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 1563 transitions. [2020-04-18 07:25:48,975 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 1563 transitions. Word has length 28 [2020-04-18 07:25:48,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:25:48,977 INFO L479 AbstractCegarLoop]: Abstraction has 649 states and 1563 transitions. [2020-04-18 07:25:48,977 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 07:25:48,977 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 1563 transitions. [2020-04-18 07:25:48,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-04-18 07:25:48,982 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:25:48,982 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:25:48,983 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 07:25:48,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:25:48,983 INFO L82 PathProgramCache]: Analyzing trace with hash 797898845, now seen corresponding path program 1 times [2020-04-18 07:25:48,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:25:48,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020677016] [2020-04-18 07:25:48,985 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:25:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:25:49,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:25:49,106 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 07:25:49,107 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 07:25:49,108 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 07:25:49,109 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-04-18 07:25:49,119 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,119 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,120 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,120 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,120 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,120 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,120 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,121 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,121 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,121 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,121 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,122 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,122 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,122 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,123 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,123 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,123 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,123 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,123 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,124 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,124 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,124 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,124 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,125 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,125 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,125 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,125 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,126 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,126 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,126 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,126 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,126 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,127 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,127 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,128 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,128 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,128 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,128 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,128 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,130 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,130 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,131 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,131 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,131 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,133 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,134 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,134 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,134 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,134 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,134 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,136 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,136 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,137 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,137 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,137 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,137 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:49,139 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-04-18 07:25:49,139 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:25:49,139 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:25:49,139 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:25:49,140 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:25:49,140 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:25:49,140 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:25:49,140 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:25:49,140 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:25:49,144 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 80 places, 74 transitions, 172 flow [2020-04-18 07:25:49,438 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6134 states. [2020-04-18 07:25:49,439 INFO L276 IsEmpty]: Start isEmpty. Operand 6134 states. [2020-04-18 07:25:49,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-04-18 07:25:49,440 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:25:49,440 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:25:49,441 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:25:49,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:25:49,441 INFO L82 PathProgramCache]: Analyzing trace with hash -425611658, now seen corresponding path program 1 times [2020-04-18 07:25:49,442 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:25:49,442 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730626362] [2020-04-18 07:25:49,442 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:25:49,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:25:49,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:25:49,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730626362] [2020-04-18 07:25:49,717 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:25:49,717 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 07:25:49,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745377428] [2020-04-18 07:25:49,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 07:25:49,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:25:49,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 07:25:49,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:25:49,719 INFO L87 Difference]: Start difference. First operand 6134 states. Second operand 9 states. [2020-04-18 07:25:50,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:25:50,061 INFO L93 Difference]: Finished difference Result 7226 states and 23494 transitions. [2020-04-18 07:25:50,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:25:50,062 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-04-18 07:25:50,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:25:50,119 INFO L225 Difference]: With dead ends: 7226 [2020-04-18 07:25:50,120 INFO L226 Difference]: Without dead ends: 5137 [2020-04-18 07:25:50,121 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 07:25:50,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5137 states. [2020-04-18 07:25:50,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5137 to 4789. [2020-04-18 07:25:50,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4789 states. [2020-04-18 07:25:50,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4789 states to 4789 states and 15493 transitions. [2020-04-18 07:25:50,452 INFO L78 Accepts]: Start accepts. Automaton has 4789 states and 15493 transitions. Word has length 28 [2020-04-18 07:25:50,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:25:50,453 INFO L479 AbstractCegarLoop]: Abstraction has 4789 states and 15493 transitions. [2020-04-18 07:25:50,453 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 07:25:50,453 INFO L276 IsEmpty]: Start isEmpty. Operand 4789 states and 15493 transitions. [2020-04-18 07:25:50,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 07:25:50,465 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:25:50,465 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:25:50,465 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:25:50,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:25:50,466 INFO L82 PathProgramCache]: Analyzing trace with hash 69934743, now seen corresponding path program 1 times [2020-04-18 07:25:50,466 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:25:50,467 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774970237] [2020-04-18 07:25:50,467 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:25:50,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:25:50,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:25:50,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774970237] [2020-04-18 07:25:50,811 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:25:50,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:25:50,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567901097] [2020-04-18 07:25:50,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:25:50,812 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:25:50,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:25:50,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:25:50,813 INFO L87 Difference]: Start difference. First operand 4789 states and 15493 transitions. Second operand 11 states. [2020-04-18 07:25:51,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:25:51,450 INFO L93 Difference]: Finished difference Result 6729 states and 20875 transitions. [2020-04-18 07:25:51,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-18 07:25:51,451 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-04-18 07:25:51,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:25:51,506 INFO L225 Difference]: With dead ends: 6729 [2020-04-18 07:25:51,506 INFO L226 Difference]: Without dead ends: 6137 [2020-04-18 07:25:51,507 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2020-04-18 07:25:51,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6137 states. [2020-04-18 07:25:51,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6137 to 4031. [2020-04-18 07:25:51,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4031 states. [2020-04-18 07:25:51,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4031 states to 4031 states and 13066 transitions. [2020-04-18 07:25:51,679 INFO L78 Accepts]: Start accepts. Automaton has 4031 states and 13066 transitions. Word has length 37 [2020-04-18 07:25:51,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:25:51,680 INFO L479 AbstractCegarLoop]: Abstraction has 4031 states and 13066 transitions. [2020-04-18 07:25:51,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:25:51,680 INFO L276 IsEmpty]: Start isEmpty. Operand 4031 states and 13066 transitions. [2020-04-18 07:25:51,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-04-18 07:25:51,683 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:25:51,684 INFO L425 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:25:51,684 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:25:51,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:25:51,684 INFO L82 PathProgramCache]: Analyzing trace with hash 630082039, now seen corresponding path program 1 times [2020-04-18 07:25:51,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:25:51,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708265495] [2020-04-18 07:25:51,685 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:25:51,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:25:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:25:51,735 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 07:25:51,736 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 07:25:51,736 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 07:25:51,737 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-04-18 07:25:51,752 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,753 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,753 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,753 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,753 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,754 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,754 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,754 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,754 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,754 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,755 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,755 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,755 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,755 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,755 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,756 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,756 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,756 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,756 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,756 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,756 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,757 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,757 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,757 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,757 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,757 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,758 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,758 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,758 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,758 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,758 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,759 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,759 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,759 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,760 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,760 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,760 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,760 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,760 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,761 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,761 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,762 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,762 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,763 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,763 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,763 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,763 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,764 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,764 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,764 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,764 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,765 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,765 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,765 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,765 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,766 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,768 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,768 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,768 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,768 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,768 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,770 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,771 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,771 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,771 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,771 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,773 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,774 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,774 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,774 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,774 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,774 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,776 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,777 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,777 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,777 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,777 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,777 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,779 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,780 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,780 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,780 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,780 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,780 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:25:51,782 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-18 07:25:51,783 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:25:51,783 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:25:51,783 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:25:51,783 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:25:51,783 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:25:51,783 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:25:51,783 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:25:51,783 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:25:51,788 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 90 transitions, 222 flow [2020-04-18 07:25:56,281 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36914 states. [2020-04-18 07:25:56,282 INFO L276 IsEmpty]: Start isEmpty. Operand 36914 states. [2020-04-18 07:25:56,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-04-18 07:25:56,283 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:25:56,283 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:25:56,283 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:25:56,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:25:56,284 INFO L82 PathProgramCache]: Analyzing trace with hash -1799452155, now seen corresponding path program 1 times [2020-04-18 07:25:56,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:25:56,284 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801601693] [2020-04-18 07:25:56,284 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:25:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:25:56,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:25:56,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801601693] [2020-04-18 07:25:56,471 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:25:56,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 07:25:56,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820751344] [2020-04-18 07:25:56,472 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 07:25:56,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:25:56,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 07:25:56,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:25:56,473 INFO L87 Difference]: Start difference. First operand 36914 states. Second operand 9 states. [2020-04-18 07:25:57,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:25:57,221 INFO L93 Difference]: Finished difference Result 48050 states and 195966 transitions. [2020-04-18 07:25:57,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:25:57,223 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-04-18 07:25:57,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:25:57,433 INFO L225 Difference]: With dead ends: 48050 [2020-04-18 07:25:57,434 INFO L226 Difference]: Without dead ends: 34889 [2020-04-18 07:25:57,434 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 07:25:57,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34889 states. [2020-04-18 07:25:59,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34889 to 32149. [2020-04-18 07:25:59,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32149 states. [2020-04-18 07:25:59,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32149 states to 32149 states and 131033 transitions. [2020-04-18 07:25:59,995 INFO L78 Accepts]: Start accepts. Automaton has 32149 states and 131033 transitions. Word has length 28 [2020-04-18 07:25:59,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:25:59,996 INFO L479 AbstractCegarLoop]: Abstraction has 32149 states and 131033 transitions. [2020-04-18 07:25:59,996 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 07:25:59,996 INFO L276 IsEmpty]: Start isEmpty. Operand 32149 states and 131033 transitions. [2020-04-18 07:25:59,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 07:25:59,997 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:25:59,998 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:25:59,998 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:25:59,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:25:59,998 INFO L82 PathProgramCache]: Analyzing trace with hash 1986486542, now seen corresponding path program 1 times [2020-04-18 07:25:59,999 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:25:59,999 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916163697] [2020-04-18 07:25:59,999 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:26:00,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:26:00,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:26:00,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916163697] [2020-04-18 07:26:00,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:26:00,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:26:00,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674736234] [2020-04-18 07:26:00,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:26:00,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:26:00,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:26:00,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:26:00,226 INFO L87 Difference]: Start difference. First operand 32149 states and 131033 transitions. Second operand 11 states. [2020-04-18 07:26:00,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:26:00,974 INFO L93 Difference]: Finished difference Result 55453 states and 215969 transitions. [2020-04-18 07:26:00,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-18 07:26:00,975 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-04-18 07:26:00,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:26:02,837 INFO L225 Difference]: With dead ends: 55453 [2020-04-18 07:26:02,838 INFO L226 Difference]: Without dead ends: 52045 [2020-04-18 07:26:02,840 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2020-04-18 07:26:03,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52045 states. [2020-04-18 07:26:04,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52045 to 30651. [2020-04-18 07:26:04,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30651 states. [2020-04-18 07:26:04,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30651 states to 30651 states and 124240 transitions. [2020-04-18 07:26:04,103 INFO L78 Accepts]: Start accepts. Automaton has 30651 states and 124240 transitions. Word has length 37 [2020-04-18 07:26:04,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:26:04,103 INFO L479 AbstractCegarLoop]: Abstraction has 30651 states and 124240 transitions. [2020-04-18 07:26:04,104 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:26:04,104 INFO L276 IsEmpty]: Start isEmpty. Operand 30651 states and 124240 transitions. [2020-04-18 07:26:04,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-04-18 07:26:04,113 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:26:04,113 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:26:04,114 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:26:04,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:26:04,114 INFO L82 PathProgramCache]: Analyzing trace with hash 703782471, now seen corresponding path program 1 times [2020-04-18 07:26:04,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:26:04,115 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127929586] [2020-04-18 07:26:04,115 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:26:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:26:04,254 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:26:04,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127929586] [2020-04-18 07:26:04,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1119482063] [2020-04-18 07:26:04,255 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:26:04,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:26:04,359 INFO L264 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 14 conjunts are in the unsatisfiable core [2020-04-18 07:26:04,374 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:26:04,492 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:26:04,570 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:26:04,610 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-04-18 07:26:04,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:26:04,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2020-04-18 07:26:04,612 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539435210] [2020-04-18 07:26:04,612 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-18 07:26:04,613 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:26:04,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 07:26:04,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:26:04,614 INFO L87 Difference]: Start difference. First operand 30651 states and 124240 transitions. Second operand 10 states. [2020-04-18 07:26:05,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:26:05,825 INFO L93 Difference]: Finished difference Result 55921 states and 216369 transitions. [2020-04-18 07:26:05,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 07:26:05,825 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 44 [2020-04-18 07:26:05,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:26:06,107 INFO L225 Difference]: With dead ends: 55921 [2020-04-18 07:26:06,107 INFO L226 Difference]: Without dead ends: 52449 [2020-04-18 07:26:06,108 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=198, Invalid=794, Unknown=0, NotChecked=0, Total=992 [2020-04-18 07:26:06,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52449 states. [2020-04-18 07:26:09,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52449 to 28815. [2020-04-18 07:26:09,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28815 states. [2020-04-18 07:26:09,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28815 states to 28815 states and 115898 transitions. [2020-04-18 07:26:09,351 INFO L78 Accepts]: Start accepts. Automaton has 28815 states and 115898 transitions. Word has length 44 [2020-04-18 07:26:09,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:26:09,352 INFO L479 AbstractCegarLoop]: Abstraction has 28815 states and 115898 transitions. [2020-04-18 07:26:09,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-04-18 07:26:09,353 INFO L276 IsEmpty]: Start isEmpty. Operand 28815 states and 115898 transitions. [2020-04-18 07:26:09,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 07:26:09,363 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:26:09,363 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:26:09,568 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:26:09,568 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:26:09,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:26:09,569 INFO L82 PathProgramCache]: Analyzing trace with hash -2103996855, now seen corresponding path program 1 times [2020-04-18 07:26:09,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:26:09,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779513228] [2020-04-18 07:26:09,571 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:26:09,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:26:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:26:09,774 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779513228] [2020-04-18 07:26:09,775 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632790594] [2020-04-18 07:26:09,775 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:26:09,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:26:09,837 INFO L264 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 16 conjunts are in the unsatisfiable core [2020-04-18 07:26:09,843 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:26:09,931 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:26:10,028 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:26:10,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:26:10,062 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-04-18 07:26:10,062 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12] total 23 [2020-04-18 07:26:10,062 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852082987] [2020-04-18 07:26:10,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-04-18 07:26:10,063 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:26:10,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-04-18 07:26:10,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2020-04-18 07:26:10,064 INFO L87 Difference]: Start difference. First operand 28815 states and 115898 transitions. Second operand 23 states. [2020-04-18 07:26:12,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:26:12,489 INFO L93 Difference]: Finished difference Result 60121 states and 228801 transitions. [2020-04-18 07:26:12,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-04-18 07:26:12,492 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 48 [2020-04-18 07:26:12,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:26:12,638 INFO L225 Difference]: With dead ends: 60121 [2020-04-18 07:26:12,639 INFO L226 Difference]: Without dead ends: 58633 [2020-04-18 07:26:12,640 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=814, Invalid=3218, Unknown=0, NotChecked=0, Total=4032 [2020-04-18 07:26:13,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58633 states. [2020-04-18 07:26:13,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58633 to 28163. [2020-04-18 07:26:13,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28163 states. [2020-04-18 07:26:14,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28163 states to 28163 states and 113376 transitions. [2020-04-18 07:26:14,049 INFO L78 Accepts]: Start accepts. Automaton has 28163 states and 113376 transitions. Word has length 48 [2020-04-18 07:26:14,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:26:14,050 INFO L479 AbstractCegarLoop]: Abstraction has 28163 states and 113376 transitions. [2020-04-18 07:26:14,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-04-18 07:26:14,050 INFO L276 IsEmpty]: Start isEmpty. Operand 28163 states and 113376 transitions. [2020-04-18 07:26:14,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 07:26:14,059 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:26:14,060 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:26:14,263 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:26:14,264 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:26:14,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:26:14,264 INFO L82 PathProgramCache]: Analyzing trace with hash -272597337, now seen corresponding path program 2 times [2020-04-18 07:26:14,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:26:14,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051556728] [2020-04-18 07:26:14,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:26:14,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:26:14,496 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-04-18 07:26:14,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051556728] [2020-04-18 07:26:14,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:26:14,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-04-18 07:26:14,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284284236] [2020-04-18 07:26:14,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-04-18 07:26:14,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:26:14,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-04-18 07:26:14,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-04-18 07:26:14,499 INFO L87 Difference]: Start difference. First operand 28163 states and 113376 transitions. Second operand 13 states. [2020-04-18 07:26:16,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:26:16,981 INFO L93 Difference]: Finished difference Result 59089 states and 224857 transitions. [2020-04-18 07:26:16,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-04-18 07:26:16,982 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 48 [2020-04-18 07:26:16,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:26:17,117 INFO L225 Difference]: With dead ends: 59089 [2020-04-18 07:26:17,118 INFO L226 Difference]: Without dead ends: 57457 [2020-04-18 07:26:17,119 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=568, Invalid=2188, Unknown=0, NotChecked=0, Total=2756 [2020-04-18 07:26:17,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57457 states. [2020-04-18 07:26:18,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57457 to 25155. [2020-04-18 07:26:18,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25155 states. [2020-04-18 07:26:18,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25155 states to 25155 states and 102290 transitions. [2020-04-18 07:26:18,294 INFO L78 Accepts]: Start accepts. Automaton has 25155 states and 102290 transitions. Word has length 48 [2020-04-18 07:26:18,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:26:18,295 INFO L479 AbstractCegarLoop]: Abstraction has 25155 states and 102290 transitions. [2020-04-18 07:26:18,295 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-04-18 07:26:18,295 INFO L276 IsEmpty]: Start isEmpty. Operand 25155 states and 102290 transitions. [2020-04-18 07:26:18,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-04-18 07:26:18,304 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:26:18,304 INFO L425 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:26:18,305 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 07:26:18,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:26:18,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1733752762, now seen corresponding path program 1 times [2020-04-18 07:26:18,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:26:18,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688186023] [2020-04-18 07:26:18,306 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:26:18,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:26:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 07:26:18,342 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 07:26:18,343 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 07:26:18,343 WARN L363 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 07:26:18,343 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-04-18 07:26:18,355 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,355 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,356 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,356 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,356 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,356 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,356 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,357 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,357 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,357 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,357 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,357 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,357 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,357 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,358 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,358 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,358 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,358 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,358 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,358 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,358 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,359 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,359 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,359 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,359 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,359 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,359 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,360 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,360 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,360 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,360 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,360 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,361 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,361 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,361 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,361 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,361 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,361 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,362 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,362 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,362 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,362 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,362 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,362 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,363 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,363 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,363 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,363 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,363 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,363 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,364 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,364 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,364 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,364 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,364 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,364 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,364 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,365 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,365 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,365 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,365 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,365 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,366 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,366 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,366 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,366 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,366 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,366 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,367 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,367 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,367 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,367 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,367 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,373 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,374 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,374 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,374 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,374 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,375 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,376 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,376 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,376 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,376 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,377 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,378 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,378 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,378 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,378 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,380 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,380 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,380 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,380 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,380 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,381 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,382 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,382 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,382 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,382 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,383 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,383 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,384 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,384 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,384 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,385 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,385 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,385 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,386 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,387 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,387 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,387 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,387 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,387 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 07:26:18,388 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-04-18 07:26:18,389 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 07:26:18,389 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 07:26:18,389 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 07:26:18,389 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 07:26:18,389 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 07:26:18,389 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 07:26:18,390 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 07:26:18,390 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 07:26:18,392 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 118 places, 106 transitions, 276 flow [2020-04-18 07:28:02,588 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 221594 states. [2020-04-18 07:28:02,589 INFO L276 IsEmpty]: Start isEmpty. Operand 221594 states. [2020-04-18 07:28:02,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-04-18 07:28:02,589 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:28:02,589 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:28:02,590 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 07:28:02,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:28:02,590 INFO L82 PathProgramCache]: Analyzing trace with hash -1964725004, now seen corresponding path program 1 times [2020-04-18 07:28:02,590 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:28:02,591 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751947411] [2020-04-18 07:28:02,591 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:28:02,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:28:02,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:28:02,719 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751947411] [2020-04-18 07:28:02,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:28:02,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-04-18 07:28:02,719 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958159250] [2020-04-18 07:28:02,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-04-18 07:28:02,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:28:02,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-04-18 07:28:02,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-04-18 07:28:02,720 INFO L87 Difference]: Start difference. First operand 221594 states. Second operand 9 states. [2020-04-18 07:28:12,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:28:12,772 INFO L93 Difference]: Finished difference Result 307106 states and 1510070 transitions. [2020-04-18 07:28:12,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-04-18 07:28:12,772 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2020-04-18 07:28:12,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:28:13,617 INFO L225 Difference]: With dead ends: 307106 [2020-04-18 07:28:13,617 INFO L226 Difference]: Without dead ends: 225465 [2020-04-18 07:28:13,617 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2020-04-18 07:28:17,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225465 states. [2020-04-18 07:28:24,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225465 to 206389. [2020-04-18 07:28:24,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206389 states. [2020-04-18 07:28:37,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206389 states to 206389 states and 1016193 transitions. [2020-04-18 07:28:37,183 INFO L78 Accepts]: Start accepts. Automaton has 206389 states and 1016193 transitions. Word has length 28 [2020-04-18 07:28:37,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:28:37,183 INFO L479 AbstractCegarLoop]: Abstraction has 206389 states and 1016193 transitions. [2020-04-18 07:28:37,184 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-04-18 07:28:37,184 INFO L276 IsEmpty]: Start isEmpty. Operand 206389 states and 1016193 transitions. [2020-04-18 07:28:37,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-04-18 07:28:37,185 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:28:37,185 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:28:37,186 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 07:28:37,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:28:37,186 INFO L82 PathProgramCache]: Analyzing trace with hash -2143812311, now seen corresponding path program 1 times [2020-04-18 07:28:37,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:28:37,187 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848487581] [2020-04-18 07:28:37,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:28:37,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:28:37,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:28:37,375 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848487581] [2020-04-18 07:28:37,375 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 07:28:37,375 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-04-18 07:28:37,375 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071255513] [2020-04-18 07:28:37,375 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-04-18 07:28:37,376 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:28:37,376 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-04-18 07:28:37,376 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-04-18 07:28:37,376 INFO L87 Difference]: Start difference. First operand 206389 states and 1016193 transitions. Second operand 11 states. [2020-04-18 07:28:49,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 07:28:49,422 INFO L93 Difference]: Finished difference Result 395237 states and 1867857 transitions. [2020-04-18 07:28:49,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-04-18 07:28:49,422 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 37 [2020-04-18 07:28:49,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 07:28:50,741 INFO L225 Difference]: With dead ends: 395237 [2020-04-18 07:28:50,741 INFO L226 Difference]: Without dead ends: 373909 [2020-04-18 07:28:50,741 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=171, Invalid=479, Unknown=0, NotChecked=0, Total=650 [2020-04-18 07:28:56,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373909 states. [2020-04-18 07:29:11,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373909 to 209027. [2020-04-18 07:29:11,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209027 states. [2020-04-18 07:29:13,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209027 states to 209027 states and 1021864 transitions. [2020-04-18 07:29:13,224 INFO L78 Accepts]: Start accepts. Automaton has 209027 states and 1021864 transitions. Word has length 37 [2020-04-18 07:29:13,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 07:29:13,224 INFO L479 AbstractCegarLoop]: Abstraction has 209027 states and 1021864 transitions. [2020-04-18 07:29:13,224 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-04-18 07:29:13,225 INFO L276 IsEmpty]: Start isEmpty. Operand 209027 states and 1021864 transitions. [2020-04-18 07:29:13,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-04-18 07:29:13,228 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 07:29:13,228 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 07:29:13,228 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-18 07:29:13,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 07:29:13,229 INFO L82 PathProgramCache]: Analyzing trace with hash 1281768886, now seen corresponding path program 1 times [2020-04-18 07:29:13,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 07:29:13,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878591508] [2020-04-18 07:29:13,229 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 07:29:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:29:13,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 07:29:13,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878591508] [2020-04-18 07:29:13,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1459229025] [2020-04-18 07:29:13,331 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:29:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 07:29:13,409 INFO L264 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 14 conjunts are in the unsatisfiable core [2020-04-18 07:29:13,417 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-04-18 07:29:13,496 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:29:13,555 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2020-04-18 07:29:13,581 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-04-18 07:29:13,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-04-18 07:29:13,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [11] total 19 [2020-04-18 07:29:13,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578102357] [2020-04-18 07:29:13,582 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-04-18 07:29:13,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-18 07:29:13,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-04-18 07:29:13,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2020-04-18 07:29:13,583 INFO L87 Difference]: Start difference. First operand 209027 states and 1021864 transitions. Second operand 10 states. Received shutdown request... [2020-04-18 07:29:23,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-04-18 07:29:23,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-04-18 07:29:23,606 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 07:29:23,614 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 07:29:23,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 07:29:23 BasicIcfg [2020-04-18 07:29:23,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 07:29:23,617 INFO L168 Benchmark]: Toolchain (without parser) took 217194.00 ms. Allocated memory was 146.8 MB in the beginning and 4.9 GB in the end (delta: 4.7 GB). Free memory was 103.6 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.5 GB. Max. memory is 7.1 GB. [2020-04-18 07:29:23,618 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-18 07:29:23,619 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.81 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.6 MB in the beginning and 162.0 MB in the end (delta: -60.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-04-18 07:29:23,620 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.40 ms. Allocated memory is still 204.5 MB. Free memory was 162.0 MB in the beginning and 160.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 07:29:23,620 INFO L168 Benchmark]: Boogie Preprocessor took 32.90 ms. Allocated memory is still 204.5 MB. Free memory was 159.4 MB in the beginning and 158.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 07:29:23,621 INFO L168 Benchmark]: RCFGBuilder took 415.22 ms. Allocated memory is still 204.5 MB. Free memory was 158.1 MB in the beginning and 138.0 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-04-18 07:29:23,622 INFO L168 Benchmark]: TraceAbstraction took 215939.44 ms. Allocated memory was 204.5 MB in the beginning and 4.9 GB in the end (delta: 4.7 GB). Free memory was 137.3 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.5 GB. Max. memory is 7.1 GB. [2020-04-18 07:29:23,626 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 721.81 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.6 MB in the beginning and 162.0 MB in the end (delta: -60.4 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.40 ms. Allocated memory is still 204.5 MB. Free memory was 162.0 MB in the beginning and 160.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.90 ms. Allocated memory is still 204.5 MB. Free memory was 159.4 MB in the beginning and 158.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 415.22 ms. Allocated memory is still 204.5 MB. Free memory was 158.1 MB in the beginning and 138.0 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 215939.44 ms. Allocated memory was 204.5 MB in the beginning and 4.9 GB in the end (delta: 4.7 GB). Free memory was 137.3 MB in the beginning and 2.8 GB in the end (delta: -2.7 GB). Peak memory consumption was 5.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 678]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 678). Cancelled while BasicCegarLoop was constructing difference of abstraction (209027states) and FLOYD_HOARE automaton (currently 19 states, 10 states before enhancement),while ReachableStatesComputation was computing reachable states (133256 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 55 locations, 1 error locations. Started 4 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 215.7s, OverallIterations: 14, TraceHistogramMax: 4, AutomataDifference: 45.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 109.0s, HoareTripleCheckerStatistics: 1935 SDtfs, 5337 SDslu, 9908 SDs, 0 SdLazy, 3448 SolverSat, 97 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 422 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 293 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2875 ImplicationChecksByTransitivity, 7.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221594occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 56.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 296984 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 666 NumberOfCodeBlocks, 666 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 529 ConstructedInterpolants, 0 QuantifiedInterpolants, 135238 SizeOfPredicates, 26 NumberOfNonLiveVariables, 330 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 14 InterpolantComputations, 10 PerfectInterpolantSequences, 9/21 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown